Light weighted material Modified plastics + Chrome plated bow steel, modified plastics improve flame retardancy, strength and impact resistance. The spider web saddle has super cool appearance, ultra light weight, sitting comfort, ventilate and shock absorption, makes cycling more comfortable. Center cutout offers anotomic relief and ventilation,this bike seat relieving pressure on the perineum and providing airflow and comfort during long rides. QUALITY GUARANTEE All our products are covered by a quality guarantee that you can contact our 24hour customer service for any problems with the product. Easy to intall The bike seat is very easy installation. Its upgrated design fit for Any Standard Bike, Perfect bicycle saddle replacement for mountain bike, bmx bikes, road bike etc. Product Specification Material Plastic Steel Size 28 13cm Color black Weight 180g NOTE 1.1 inch 2.45cm 1cm 0.393inch 2.Please allow 1 3 cm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the product Package Including 1pc bicycle sushion